Make compatible with Vaadin 7.2
vis.js 0.5.x -> 1.0.2
vaadin 7.1.14 -> 7.2.1
graph display fix
got rid of redundant command object
added options to configure graph
Data was removed
Builders nodes and edges, more option mappings
Merge pull request #1 from ovsyankin/master

Make compatible with Vaadin 7.2